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Title: Method for fabricating composite carbon foam

Abstract

Carbon aerogels used as a binder for granularized materials, including other forms of carbon and metal additives, are cast onto carbon or metal fiber substrates to form composite carbon thin film sheets. The thin film sheets are utilized in electrochemical energy storage applications, such as electrochemical double layer capacitors (aerocapacitors), lithium based battery insertion electrodes, fuel cell electrodes, and electrocapacitive deionization electrodes. The composite carbon foam may be formed by prior known processes, but with the solid particles being added during the liquid phase of the process, i.e. prior to gelation. The other forms of carbon may include carbon microspheres, carbon powder, carbon aerogel powder or particles, graphite carbons. Metal and/or carbon fibers may be added for increased conductivity. The choice of materials and fibers will depend on the electrolyte used and the relative trade off of system resistivity and power to system energy.

Inventors:
 [1];  [2];  [3]
  1. San Leandro, CA
  2. Pleasant Hill, CA
  3. Pleasanton, CA
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
OSTI Identifier:
874186
Patent Number(s):
6332990
Assignee:
The Regents of the University of California (Oakland, CA)
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; fabricating; composite; carbon; foam; aerogels; binder; granularized; materials; including; forms; metal; additives; cast; fiber; substrates; form; film; sheets; utilized; electrochemical; energy; storage; applications; double; layer; capacitors; aerocapacitors; lithium; based; battery; insertion; electrodes; fuel; cell; electrocapacitive; deionization; formed; prior; processes; solid; particles; added; liquid; phase; process; gelation; microspheres; powder; aerogel; graphite; carbons; andor; fibers; increased; conductivity; choice; depend; electrolyte; trade; resistivity; power; fuel cell; energy storage; liquid phase; carbon fiber; capacitive deionization; metal fiber; form composite; /252/423/429/502/

Citation Formats

Mayer, Steven T, Pekala, Richard W, and Kaschmitter, James L. Method for fabricating composite carbon foam. United States: N. p., 2001. Web.
Mayer, Steven T, Pekala, Richard W, & Kaschmitter, James L. Method for fabricating composite carbon foam. United States.
Mayer, Steven T, Pekala, Richard W, and Kaschmitter, James L. Mon . "Method for fabricating composite carbon foam". United States. https://www.osti.gov/servlets/purl/874186.
@article{osti_874186,
title = {Method for fabricating composite carbon foam},
author = {Mayer, Steven T and Pekala, Richard W and Kaschmitter, James L},
abstractNote = {Carbon aerogels used as a binder for granularized materials, including other forms of carbon and metal additives, are cast onto carbon or metal fiber substrates to form composite carbon thin film sheets. The thin film sheets are utilized in electrochemical energy storage applications, such as electrochemical double layer capacitors (aerocapacitors), lithium based battery insertion electrodes, fuel cell electrodes, and electrocapacitive deionization electrodes. The composite carbon foam may be formed by prior known processes, but with the solid particles being added during the liquid phase of the process, i.e. prior to gelation. The other forms of carbon may include carbon microspheres, carbon powder, carbon aerogel powder or particles, graphite carbons. Metal and/or carbon fibers may be added for increased conductivity. The choice of materials and fibers will depend on the electrolyte used and the relative trade off of system resistivity and power to system energy.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2001},
month = {1}
}

Patent:

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